1;; DFA scheduling description of the Synopsys DesignWare ARC600 cpu
2;; for GNU C compiler
3;; Copyright (C) 2007-2020 Free Software Foundation, Inc.
4;; Contributor: Joern Rennecke <joern.rennecke@embecosm.com>
5;;              on behalf of Synopsys Inc.
6
7;; This file is part of GCC.
8
9;; GCC is free software; you can redistribute it and/or modify
10;; it under the terms of the GNU General Public License as published by
11;; the Free Software Foundation; either version 3, or (at your option)
12;; any later version.
13
14;; GCC is distributed in the hope that it will be useful,
15;; but WITHOUT ANY WARRANTY; without even the implied warranty of
16;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17;; GNU General Public License for more details.
18
19;; You should have received a copy of the GNU General Public License
20;; along with GCC; see the file COPYING3.  If not see
21;; <http://www.gnu.org/licenses/>.
22
23(define_automaton "ARC600")
24
25(define_cpu_unit "issue_600" "ARC600")
26(define_cpu_unit "mul64_600" "ARC600")
27
28; latency from flag-setting insns to branches is 3.
29(define_insn_reservation "compare_600" 3
30  (and (eq_attr "tune" "arc600")
31       (eq_attr "type" "compare"))
32  "issue_600")
33
34(define_insn_reservation "load_DI_600" 4
35  (and (eq_attr "tune" "arc600")
36       (eq_attr "type" "load")
37       (match_operand:DI 0 "" ""))
38  "issue_600")
39
40(define_insn_reservation "load_600" 3
41  (and (eq_attr "tune" "arc600")
42       (eq_attr "type" "load")
43       (not (match_operand:DI 0 "" "")))
44  "issue_600")
45
46(define_insn_reservation "mul_600_fast" 3
47  (and (eq_attr "tune" "arc600")
48       (match_test "arc_multcost < COSTS_N_INSNS (7)")
49       (eq_attr "type" "multi,umulti"))
50  "mul64_600*3")
51
52(define_insn_reservation "mul_600_slow" 8
53  (and (eq_attr "tune" "arc600")
54       (match_test "arc_multcost >= COSTS_N_INSNS (7)")
55       (eq_attr "type" "multi,umulti"))
56  "mul64_600*8")
57
58(define_insn_reservation "mul_mac_600" 3
59  (and (eq_attr "tune" "arc600")
60       (eq_attr "type" "mulmac_600"))
61  "nothing*3")
62
63(define_bypass 1 "mul_mac_600" "mul_mac_600")
64